Hsing Michael 4

What Happened
Michael Hsing, CEO and Director of Monolithic Power Systems, reported open-market sales of a total of 33,000 shares on February 12, 2026. The transactions were reported as sales (code S) executed under a Rule 10b5-1 trading plan adopted 08/28/2025. Proceeds across the trades totaled approximately $38,670,257, with individual sale prices (per line) ranging from roughly $1,152.31 up to $1,218.82 per share (see footnotes for detailed price ranges and weighted averages).

Key Details

• Transaction date: 2026-02-12 (reported on Form 4 filed 2026-02-17). Filing appears timely (filed after the Presidents' Day holiday).
• Total shares sold: 33,000; approximate total proceeds: $38,670,257.
• Individual reported lots and proceeds: e.g., 12,731 sh @ $1,155.71 = $14.71M; 4,992 sh @ $1,159.84 = $5.79M; other lots range from 160 to 3,640 shares as listed on the Form 4.
• Price details: footnotes state weighted-average prices per line and underlying price ranges (overall range in these lines ≈ $1,152.31–$1,218.82). The filer offers to provide the number sold at each separate price on request.
• Plan/authorization: Transactions were made pursuant to a 10b5-1 trading plan adopted 08/28/2025 (footnote F1).
• Shares owned after the transaction: not specified in the provided excerpt—see the full Form 4 for post-transaction holdings.
• Transaction code: S = Sale.

Context
These were prearranged open-market sales under a 10b5-1 plan, which typically indicate scheduled, non-discretionary dispositions rather than ad-hoc trades; such sales are common for insiders managing diversification or tax/liquidity needs. This Form 4 shows a material dollar amount ($38.7M) but, by itself, does not explain the insider’s motivation.